Yup, looks like you've got a budding artist on your hands. One thing my sister got for Porter is this pen that you fill with water and this special mat that they can draw on with just the water pen. Can't go wrong with just plain old water!

We had the Color Wonder markers, but once the coloring book got filled up, we never bought more paper. And our Mr. Clean eraser got used up with the last bout of wall artwork and I keep forgetting to pick up a new one. But good suggestions, both!

And Amy, is that the Aquadoodle? I've heard of that but never checked it out. Maybe now is the time...